Finding the Fourth Proportional to 76,179,798.41, 105,128,739.57 and 41,372,738.01
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Solution
The fourth proportional to 76,179,798.41, 105,128,739.57 and 41,372,738.01 is: 57,094,713.96
Step by Step Solution
- Step 1: Write the proportion equation
76,179,798.41 : 105,128,739.57 = 41,372,738.01 : x - Step 2: Convert to fraction form
76,179,798.41/105,128,739.57 = 41,372,738.01/x - Step 3: Cross multiply
76,179,798.41x = 105,128,739.57 × 41,372,738.01 - Step 4: Simplify right side
76,179,798.41x = 4,349,463,799,706,278 - Step 5: Solve for x
x = 4,349,463,799,706,278/76,179,798.41 - Step 6: Final answer
x = 57,094,713.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.